Laser Hardening Technology #shorts

It is unbelievable that the hardness of metal can be improved with just one laser sweep. this is a processing technology called laser hardening. The principle is quite simple. It uses high-energy laser technology to heats up areas close to the surface of a workpiece, causing the heat-induced austenitization of the originally ferritic-perlitic steel structure. When the beam moves on, the material on the processed part cools down quickly, creating hard martensite
#interesting #interestingfacts #unique #technology

[mattandrews]

In other words the heat from the laser quickly heats up and changes the metal’s atomic lattice structure to a less chaotic and thus more rigid material right?

[wraith]

Being a metallurgist and a machinist all my life, I would say at best, this is surface or case hardening.

[chrisgrilley]

Very fancy talk for heat treating metal. The only difference between this and traditional heat treating is how targeted it is.

[iaf]

Only because i studied mechanical engineering 20yrs ago I understood what martensite and austenite are. I still remember the iron-carbon phase diagram to this day but worked a day in any engineering role. 😊

[MichaelGraham-iq]

On nearly all Colchester lathes is a plate proudly stating "Flame hardened bedways". Obtained by an intense, focused flame traversing across the bedways causing a desired depth of critical temp. The "quench" is simply the effect of the massive heat sinks ability to absorb that heat. The laser is another way to obtain a. Intense source of heat.
(I think in some circumstances the flame head is closely followed by water spray).

[AugmentedGravity]

It is pretty far from unbelievable. This also only hardens the face of the metal as it won’t heat and harden it all the way through.

[-srujan]

"Heat induced austenitization of originally ferritic perlitic steel structure" 🗿

[Kyoz]

This sounds like a retro encabulator feature.

[SAV]

"Every breath you take
And every move you make
Every bond you break
Every step you take
I'll be watching you".

[everettplummer]

As a tool & knife maker, this is very interesting.

[chris_sirhc]

Tempering and case hardening for a more robust component.

[aliettienne]

Laser energy is very powerful and useful when used correctly. 😎💯💪🏿👍🏿

[galaxiedance]

That's true! Basically Case hardening. I'm a Tool & Die Maker. We would also case harden Mild steel. You can't harden normally but what you'd do is heat it up so it's real hot and then we'd have a container of Cyanide. Yes that's right, rat Poison. It would be brushed onto the super hot part and it would treat the surface of the metal and make it harder. Crazy huh! As an apprentice I wondered why we have such stuff at work, it was a big container of it. That's why. When we wanted to finally get rid of that Cyanide. It took us around 2 years. Absolutely nobody wanted to take it away or have anything to do with it. haha

[zackworrell]

Hass to be high carbon steel to pull that off. Too bad they don’t make that clear.

[TomCrockett-blgp]

As I use to say to my young son “grasshopper”, temper, temper.😂

[ConanDuke]

"Unbelievable"?
Hardly 🥁

Tell the robot Sting wants his royalties.

[Puffalupagus]

Proper heat treating requires multiple stages of heating and cooling to get the perfect mix of hardness and ductility for the design case.

[XBullittX]

Thats an easy way to harden pieces, neat!

[AlwayslookingNeverlookedfor]

I wish I could get my father one of these for when he builds projects. 😊❤

[XD-cfgr]

So if I got this right this laser is basically heat treating the outer layer to make it harder while the interior of the steel bar serves as a place for the heat to quickly dissipate, thus bypassing the need for quenching, yeh?
So.. This seems like it should be the go to method for hardening the edges of knives and the like then?